L chapman



SSheets-Sheet 1.

L. CHAPMAN.

MACHINE Fon MAKING sLEDGEs. No.17Z,Z48. Patented Jan.1s,1e7e.

9 Sheets-Sheet 2. L. CHAPMAN.

MACHINE Fon MAKING sLEDeEs. No.172,248. Patented Jan.1s,1s7s.

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L. CHAPMAN.

MACHINE Fon MAKING sLEDGEs. No.17Z,Z48.

Patented-Jan.18,1876.

N- PETERS, PHOTLLUTHOGRAPHER. WASHINGTON, D C` 9 sheets-sheet 5.

L. CHAPMAN.

MACHINE. FOR MAKING SLEDGES. NO 17Z,Z48 Patented Ja1-1.18,18l76.

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L. CHAPMAN.

MACHINE FOR MAKING sLEnGEs.

Patented Jan.18,1875.

No.17Z,'Z48-.

wif/misses 9 Sheets-Sheet?. L. CHAPMAN.

MACHINE FOR MAKING SLEDGES. Y No.172,248. Paemzed(Tan.18,18'76..

WWA/3556 fm I SSheets-Sheet 8. L. CHAPMAN. MACHINE Fon MAKING SLEDGES.No.172,248. Patented Jan.1s,1a76.

M//VESSES. l/v VE/V To@ defy- NPSTERS. PHDTD-LITHOGRAFHER, WASHINGTON, DC.

MACHINE Fon MAKING sLE'DGEs. No.17Z,Z48. Patented Jan. 18,11876.

DLPETERS. FNDYD-LINUGRAPIIER, WASMNGYON. D CA hispanista asistanf,Latajfaam-werden@@agayit; 13a-,apaise i L` f;im,emmere,.i`s75.`` .i

Betitknown tha I, .LUKE

Seel-.of ,Constantine invente 1-1nereil i new and useful Improvementspertaining; .toiy

Machinerygfor Producing `Silledges `and s imilarf implements, lof `whichthe following, is @speci-L cation, reference beingA had to tithe.accompa-i; nying drawings, where- .i i Figure; .l` it a i rersrttveView` .0f .the :ma: chine` made use of for operating the dies. Fig. 2 isa viewQlooking downuponthe'bedzof dies] which listat Athebase ofthemachinathe body of the follower `broken away... (Fig. 3 is a .View ofthe face of the Adies. which are upongthe lower side or faceofthereciprocating follow-` er. ,n .Figtft is a ,View incentralyenticalcross-` section of the @partial punch-dies." Figi is `a i View in`central .vertical :cross-section `of the f y complete punch-dies.` Fig.fis a side yiewof the side-ibrmingdies. `Figgf isa sideviewof thechamferingfdies Eig-'315e vwff e plmh made, 11S-eet Fig-eisevewfewmpletedisledge, in the manufacture of which the dies hereinbeforereferred to are used.G Fig. i 10 is a side View of theisledge-showniiniFig. 9. i Fig. 11 is a betteln` fiiewl' of i the; sledge shown in Fig.9. h i

The letter a denotes the base, and b b stand-y4 ards, of lthe machinefor operating the dies. The letter c denotes a follower, having by anyVproper means-and theexact means are not essential-reciprocatin g motionin the ways d d, which are on the standard. I prefer that the followerhave a continuous reciprocating motion, in distinction from singlereciprocations.` For the operations it performs require the 4puttingforth of great` force, and clutchmoticns are diflicult to usesatisfactorily in such connection; and in order that this follower mayhave continuons reciprocation, 1 have made the under dies so that theycan be Withdrawn at pleasure, as will be hereinafter explained. i

The first step is to take a bar of wrought. iron or steel, square orrectangular in cross-l section, and cut it into lengths each containingstock su'cient for the desired Sledge. It

is then deeply prick-punched on one side at 1 i lthitlainherentes@CHAPMAN, of`

the Sledge'.` The stock-piece t 4vprepared is?. properly fhetdfpreffbli"a Clry-re'df andsubmitted lto Athe action 'lof the partial punch-dies e`f,'one 'ct' w'hichfis` inf the `lnweij upper teatgpunchfentersfas Showninl ,Figlie l aies it is piaced upon the met uit, A'winni y isi.' 'thenoutfroin `under the .folle"wei",` and the die i is movedtunderthefollower, so thatthe corre-m same-time.y After the stock-piece has beensubmitted to the action of the partial punchdies e f, it is thensubmitted to the action of the complete punch-dies g h, the latter ofwhich has the recessed punch h2, and the former `the recessed punch g2.Fig. 5 shows the operation of this set of dies. The stockpiece is nowsubmitted to the action of' the chamferingfdies i' s, the former `ofwhich has an angular channel running from end to end, (see Fig'. 1,) andlthe latter is beveled from center to ends, with a central recess, s',which prevents the upper die (which does the chamfering) from chamferingthe stock-pieceat the center, ,(see Fig. 7,) and the bevels `from ceni.i. ey oi' stock-piece, andv v.makes the chamfer. Four strokes' aretaken, so as to chamfer all the corners. The stock-piece is nowreheated, the

punch w inserted in the eye, and driven through the stock by the die j,the stock resting mean- `v while on the die i, the eye being over. thegroove therein, and the punch running down into the groove. Thestock-piece, with the punch 'w center to ends, Vand are corresponding,duplicates. (See Fig. 6.) The stock-piece is now Alaid on die t', Withthe point of punch w pointing upward, and' diej descends and drives thepunch out of the stock-piece? The stock-l piece is novir laid bottomdown on the die k,

whichis flat-faced, or butislightly beveled from center to ends, and thedie fm, beveled from center to ends, comes down andforms the top of' thesledge; and the operations with Vthis machine and these dies arefinished. The shapesof the faces of dies 7c and m correspond totheshapes of the bottom and top of the Sledge, as shown in Fig.' 10.;`

In order to explain what I mean bythe top, bottom, and sides of thesledge I refer to' Figs. 9, 10,'and 1 1. The letter a denotes the top;m1,the bottom; v2 m2, the sides; x3 w3, the ends; m4,' theehamfers, and4x5 the eye. After the operation hereinbefore described it only remains,sofar as forging is concerned, to work the ends by common methods intothe shape shown in Figs. 9, 10, and 11.v

This same machine, with proper changesin dies, is applicable to themanufacture of sledges and hammers of somewhat differing shapes, as tosome of which I will explain.

Fig. 12 shows a double-edged masonsI Sledge. The eye is formed in thesame manner' and by 'the same dies hereinbefore deof dies beveled lfromcenter to ends, the outlines lof the lfaces of which are, respectively,

lines y2. (See Fig. 13.) Fig. 14 shows a single-edged masons Sledge. Theeye and top and bottom of this are formed by the same two sides areformed in dies bev'eled from center to. ends, with bevels conforming tothe shape of the sides. (See Fig. 15.) Fig. 16 shows a double-facedmasons Sledge. The eye first hereinbefore described; but the two sidesare formed by dies having beveled faces conforming to the shape of 'thesides. (See Fig. 1'7.) Fig. 18 shows a single peau-Sledge. The eye andtop and bottom are formed by dies, as irst hereinbefore described, butthe two sides by dies having faces beveled to correspond to the shape ofthe sides. Fig. 20 shows a large machinists hammer.

shown in Fig. 21; and the same is true, with yobvious modifications, asto theH hammers shown in Figs. 22, 23, and 24:.

sledges are much the same. All are made in the ones in the shape of someof the dies. l

bottom ofthe follower in dovetail die-seats.

I claim as my inventionthe reciprocating diebearing=" follower c, and

as and for the purpose set forth.

2. In combination, dies h g, e f, m k, o p,

designed for use substantially as described. LUKE CHAPMAN. i Witnesses:

' OLIVER F. PERRY,

ALBERT L. THAYER.

:denoted by the dotted lines yv 'y1 /dies as irst hereinbeforedescribed; but the andtop anda bottom arey formed -by dies, as

(See Fig. 19.)

Its eye, all its sides and bevels can lbe formed by dies much the sameas some of those hereinbefore described, with the additional dies i Theoperations for all these hammers and same machine, the sole changesbeing obvious f rEhe upper dies f h j m p s slide into they 1. Incombination, the frameof the machine,

die-blocks e1, 8vo., in double sets, having recip rocations permissiblein bed u, substantially andy s, when all are constructed, shaped, and

